Hired by a curator at the Detroit Institute of Arts to serve as his bodyguard during a transaction involving a stolen illuminated manuscript, Amos Walker enters a darkened skin-flick theater where the exchange is supposed to take place. When the deal goes south, he’s lucky to leave with his life . . . and a new lead to pursue in collaring the man who murdered his partner 20 years ago.

In a case that features a wheelchair-bound pornographer and rare book collector, an ultra-slick art expert, a trophy wife, and a white-collar criminal, Walker faces one of the greatest challenges of his career as a present-day crime draws him back to one of the darkest episodes of his past.